package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
@Slf4j
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对

        password = DigestUtils.md5DigestAsHex(password.getBytes());
        log.info("修改的密码" + password);
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * x新增员工
     *
     * @param employeeDTO
     */
    @Override
    public void saver(EmployeeDTO employeeDTO) {

        Employee employee = new Employee();
        //复制属性
        BeanUtils.copyProperties(employeeDTO, employee);
        //设置账号状态1正常0禁用
        employee.setStatus(StatusConstant.ENABLE);
        //设置默认密码md5加密
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        //创建和修改时间
/*        employee.setCreateTime(LocalDateTime.now());
        employee.setUpdateTime(LocalDateTime.now());
        //创建人和修改人id
        employee.setCreateUser(BaseContext.getCurrentId());
        employee.setUpdateUser(BaseContext.getCurrentId());*/
        log.info("传递至" + employee);
        employeeMapper.insert(employee);
    }

    /**
     * 员工分页查询
     *
     * @param pageQueryDTO
     * @return
     */
    @Override
    public PageResult page(EmployeePageQueryDTO pageQueryDTO) {

        PageHelper.startPage(pageQueryDTO.getPage(), pageQueryDTO.getPageSize());

        Page<Employee> page = employeeMapper.page(pageQueryDTO);

        return new PageResult(page.getTotal(), page.getResult());
    }

    /**
     * 员工分页查询
     *
     * @param status
     * @param id
     */
    @Override
    public void state(Integer status, Long id) {
//设置修改参数
        Employee employee = new Employee();
        employee.setStatus(status);
        employee.setId(id);
        //不显示密码
        employee.setPassword("****");
        employeeMapper.updata(employee);
    }

    /**
     * 查询员工信息
     * @param id
     * @return
     */
    @Override
    public Employee getById(Long id) {
        return employeeMapper.getById(id);
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
        //更新操作时间和操作人
//        employee.setUpdateUser(BaseContext.getCurrentId());
//        employee.setUpdateTime(LocalDateTime.now());
        employeeMapper.updata(employee);
    }

}
